PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/31-03:27:50
G08     270.6          19.7                7.2 +/-    2.10      15.9 +/-    2.10  0.120 / 0.300
G10     53.6           59.8                5.8 +/-    0.89       6.6 +/-    0.89  0.120 / 0.330
G14     256.5          61.9                9.1 +/-    0.70      10.2 +/-    0.70  0.060 / 0.060
G18     314.3          28.3                7.0 +/-    2.56      12.7 +/-    2.56  0.060 / 0.060
G20     70.7           59.7                9.7 +/-    0.57      11.0 +/-    0.57  0.250 / 0.200
G21     154.3          20.2                8.2 +/-    2.90      17.9 +/-    2.90  0.150 / 0.260
G24     40.8           11.8                6.0 +/-    2.58      16.2 +/-    2.58  0.030 / 0.030
G27     235.0          18.7               11.0 +/-    1.40      25.0 +/-    1.40  0.030 / 0.040
G31     177.5          28.0                9.1 +/-    1.63      16.7 +/-    1.63  0.100 / 0.210
G32     331.6          75.6                8.3 +/-    0.57       8.6 +/-    0.57  0.090 / 0.310